/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package general.servelets;
import java.io.File;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.io.FileUtils;
/**
 *
 * @author isaias
 */
@WebServlet(value = "/pdfservlet", loadOnStartup = 1)
public class PDFServlet extends HttpServlet{
     /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        ServletOutputStream servletOutputStream = response.getOutputStream();


        System.out.println(">>>>>>>>>>>> ENTROU NO PDFServlet");

        String filePath = null;

        try {

            filePath = request.getParameter("src");

            System.err.println("PDF SERVLET: " + filePath);

            byte[] pdfBytes = FileUtils.readFileToByteArray(new File(filePath));

            //response.setHeader("Content-Disposition", "inline; filename=\""+ filePath + "\""); // Colocar dinamico
            response.setContentType("application/pdf");
            response.setContentLength(pdfBytes.length);

            response.getOutputStream().write(pdfBytes);
            servletOutputStream.flush();
            servletOutputStream.close();

        } catch (Exception e) {
            e.printStackTrace();
            response.setContentType("text/plain");
            response.getOutputStream().print("Nenhum relatório foi carregado");
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
 
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
